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CEGL008481 Salix nigra - (Fraxinus pennsylvanica, Vachellia farnesiana) Floodplain Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Black Willow - (Green Ash, Sweet Acacia) Floodplain Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This community is described from seasonally to semipermanently flooded depressions in the Coastal Plain of Texas, but may occur elsewhere. It is dominated or codominated by Salix nigra. In the Columbia Bottomlands area of coastal Texas, this community occupies large (250-acre) shallow ponds (e.g., coalesced, sedimented old oxbows) in ancient river floodplains. The successional status of this vegetation is undetermined, but it is apparently long persisting. The overstory is dominated by Fraxinus pennsylvanica and Salix nigra. Though patchily distributed, the shrub layer is distinctive and dominated by Cephalanthus occidentalis. The herbaceous layer is characterized by Phanopyrum gymnocarpon, Echinodorus spp., Polygonum subgen. Persicaria spp., and Sagittaria spp. This association is also found fringing shallow, upland ponds along the Texas Coastal Bend. These examples may contain Acacia farnesiana.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This community is similar to ~Salix nigra / (Cephalanthus occidentalis) Swamp Forest (CEGL004773)$$, but occurs south of the range of some components of that type (i.e., Acer rubrum, Liquidambar styraciflua).
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: The overstory is dominated by Fraxinus pennsylvanica and Salix nigra. Though patchily distributed, the shrub layer is distinctive, and dominated by Cephalanthus occidentalis. The herbaceous layer is characterized by Phanopyrum gymnocarpon (= Panicum gymnocarpon), Echinodorus spp., Polygonum subgen. Persicaria spp., and Sagittaria spp. In some examples, Salix nigra may be the sole dominant with few other species present.
Dynamics: In the Columbia Bottomlands area of coastal Texas, this community occupies large (250-acre) shallow ponds (e.g., coalesced, sedimented old oxbows) in ancient river floodplains. The successional status of this vegetation is undetermined, but it is apparently long persisting.
Environmental Description: In the Columbia Bottomlands area of coastal Texas, this community occupies large shallow ponds in ancient river floodplains. This association is also found fringing shallow, upland ponds along the Texas Coastal Bend.
Geographic Range: This community is currently known only from Texas, but may occur elsewhere.
Nations: US
States/Provinces: TX
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.687468
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: G4?
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 1 Forest & Woodland Class | C01 | 1 |
| Subclass | 1.B Temperate & Boreal Forest & Woodland Subclass | S15 | 1.B |
| Formation | 1.B.3 Temperate Flooded & Swamp Forest Formation | F026 | 1.B.3 |
| Division | 1.B.3.Nb Southeastern North American Flooded & Swamp Forest Division | D062 | 1.B.3.Nb |
| Macrogroup | 1.B.3.Nb.4 Swamp Chestnut Oak - Bald-cypress - Pecan Southern Floodplain Forest Macrogroup | M031 | 1.B.3.Nb.4 |
| Group | 1.B.3.Nb.4.b Green Ash - American Elm - Black Willow Floodplain Forest Group | G759 | 1.B.3.Nb.4.b |
| Alliance | A3709 American Elm - Cedar Elm - Sugarberry West Gulf Coastal Plain Floodplain Forest Alliance | A3709 | 1.B.3.Nb.4.b |
| Association | CEGL008481 Black Willow - (Green Ash, Sweet Acacia) Floodplain Forest | CEGL008481 | 1.B.3.Nb.4.b |
Concept Lineage: Part of CEGL007410 split off to form CEGL008481.
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: No Data Available
- NatureServe Ecology - Southeastern United States. No date. Unpublished data. NatureServe, Durham, NC.
- Southeastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Durham, NC.